I have a 98 RS 50 and I have recently had problems starting the bike - it will start after a few attempts, then stall - I just can´t keep it running. This happens mostly when it is damp. I came back from holiday recently and it wouldn´t start for ages - I finally got it started and it bogged down and cut out halfway up the road! It used to be fine up till a couple of weeks ago. It´s getting really embarassing when it won´t start if I meet my friends or girlfriend. Help!